CN114170941A - Display brightness matching method and display - Google Patents

Display brightness matching method and display Download PDF

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Publication number
CN114170941A
CN114170941A CN202111495660.8A CN202111495660A CN114170941A CN 114170941 A CN114170941 A CN 114170941A CN 202111495660 A CN202111495660 A CN 202111495660A CN 114170941 A CN114170941 A CN 114170941A
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China
Prior art keywords
display panel
brightness
correction
display
gray scale
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CN202111495660.8A
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Chinese (zh)
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CN114170941B (en
Inventor
康芯仪
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TCL China Star Optoelectronics Technology Co Ltd
Huizhou China Star Optoelectronics Display Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
Huizhou China Star Optoelectronics Display Co Ltd
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Application filed by TCL China Star Optoelectronics Technology Co Ltd, Huizhou China Star Optoelectronics Display Co Ltd filed Critical TCL China Star Optoelectronics Technology Co Ltd
Priority to CN202111495660.8A priority Critical patent/CN114170941B/en
Priority to US17/622,825 priority patent/US12073755B2/en
Priority to PCT/CN2021/140747 priority patent/WO2023103102A1/en
Publication of CN114170941A publication Critical patent/CN114170941A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application relates to a brightness matching method of a display and the display, wherein the method comprises the following steps: correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness; performing second correction on the brightness of the second display panel according to the second correction information to obtain second correction brightness; and performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness so that the brightness of the second display panel is matched with the brightness of the first display panel. According to the method and the device, the second correction is performed on the brightness of the second display panel after the first correction, the third correction is performed on the brightness of the second display panel according to the first correction brightness and the second correction brightness, the difference between the corrected brightness of the second display panel and the actually observed brightness of the second display panel can be avoided, and the consistency of the display effect of the second display panel and the display effect of the first display panel is improved.

Description

Display brightness matching method and display
Technical Field
The present application relates to the field of display technologies, and in particular, to a brightness matching method for a display and a display.
Background
Because the processing technology of the Liquid Crystal panel is limited, the black gap between the LCD (namely, the Liquid Crystal Display) splicing screens cannot be eliminated in the prior art, and the periphery of the LED (namely, the Light-Emitting Diode) is not provided with a circuit, so that the seamless joint effect can be achieved. Therefore, in the prior art, the LED transition is added in the middle of the splicing seams of the LCD splicing screens, so that the black seams among the LCD splicing screens are effectively eliminated.
In the prior art, ensuring the consistency of the display effect of the LED and the LCD is one of the major difficulties to be broken through for realizing seamless connection. For example, in terms of brightness, since light is emitted from a backlight panel in an LCD screen, the light enters human eyes to be perceived through the action of liquid crystal and a polarizer, and light emitted from an LED can be directly perceived by human eyes due to its self-luminous property. Therefore, without processing the brightness of the LED and LCD, the brightness of the LED is much higher than the brightness of the LCD.
In the prior art, the brightness of the LED screen is generally adjusted by using a point-by-point correction technique. The point-by-point correction technology can acquire the brightness of each pixel area on the LED screen, give out a corresponding correction coefficient and feed back the correction coefficient to the control system, so as to realize the differential driving of each pixel area of the LED screen.
However, there is an error in adjusting the brightness of the LED screen based on the LCD screen brightness measured by the colorimeter in the related art. In the actual working process, the brightness of the LED screen adjusted by taking the brightness of the LCD screen measured by the colorimeter as a reference is inconsistent with the brightness of the LED actually observed by naked eyes. Therefore, how to ensure the consistency of the display effect of the LED and the LCD is an urgent problem to be solved.
Disclosure of Invention
In view of this, the present application provides a brightness matching method for a display and a display, which can solve the problem that the brightness of a second display panel in a tiled screen is inconsistent with the brightness of a first display panel, avoid a difference between the corrected brightness of the second display panel and the actually observed brightness of the second display panel, and improve the consistency of the display effect of the second display panel and the first display panel.
According to an aspect of the present application, there is provided a brightness matching method for a display, the display including a first display panel and a second display panel, the first display panel being spliced with the second display panel, the brightness matching method comprising: acquiring first correction information of a correction instrument on the first display panel; correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness of the second display panel; acquiring second correction information of the second display panel by the user; correcting the brightness of the second display panel for the second time according to the second correction information to obtain second correction brightness of the second display panel; and performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel, so that the brightness of the second display panel is matched with the brightness of the first display panel.
Further, acquiring second correction information of the second display panel by the user, comprising: judging whether the first correction brightness of the second display panel is consistent with the brightness of the second display panel which is actually observed or not; and acquiring second correction information of the second display panel by the user under the condition that the first correction brightness of the second display panel is inconsistent with the brightness of the second display panel actually observed.
Further, determining whether the first corrected luminance of the second display panel is consistent with the actually observed luminance of the second display panel includes: displaying the same display screen as the first display panel on the second display panel based on the first corrected luminance; and judging whether the first correction brightness of the second display panel is consistent with the actually observed brightness of the second display panel or not according to the brightness of the display picture of the second display panel and the brightness of the display picture of the first display panel.
Further, acquiring first correction information of a correction instrument on the first display panel, including: displaying the same display screen as the first display panel on the second display panel; acquiring first correction information of a correction instrument on the first display panel, wherein the first correction information comprises first display brightness of the first display panel and second display brightness of the second display panel.
Further, acquiring second correction information of the second display panel by the user, comprising: acquiring a gray scale range of the second display panel; selecting at least one tie point gray scale within the gray scale range of the second display panel; and acquiring second correction information of the second display panel by the user according to the at least one binding point gray scale, wherein the second correction information comprises the brightness of the second display panel corresponding to the at least one binding point gray scale.
Further, performing a third correction on the luminance of the second display panel according to the first corrected luminance and the second corrected luminance to obtain a third corrected luminance of the second display panel, including: generating a first gain coefficient corresponding to the at least one binding point gray scale according to the first correction brightness and the second correction brightness; performing linear interpolation based on the first gain coefficient corresponding to the at least one binding point gray scale to obtain a second gain coefficient corresponding to each level of brightness of the second display panel; and performing third correction on the brightness of the second display panel according to the second gain coefficient to obtain third corrected brightness of the second display panel.
Further, the display screen of the display includes a plurality of colors, and the first correction luminance, the second correction luminance, and the third luminance respectively correspond to the respective colors of the display screen of the display.
Further, the calibration instrument comprises a colorimeter or a spectrometer.
Further, the gray scale range of the second display panel is the same as that of the first display panel.
According to another aspect of the present application, there is provided a display including: the first acquisition module is electrically connected with the first correction module and is used for acquiring first correction information of the first display panel by a correction instrument; the first correction module is electrically connected with the first acquisition module and the second acquisition module and is used for correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness of the second display panel; the second acquisition module is electrically connected with the first correction module and the second correction module and is used for acquiring second correction information of the user on the second display panel; the second correction module is electrically connected with the second acquisition module and the third correction module, and is used for performing second correction on the brightness of the second display panel according to the second correction information to obtain second correction brightness of the second display panel; and the third correction module is electrically connected with the second correction module and is used for performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel so as to enable the brightness of the second display panel to be matched with the brightness of the first display panel.
By obtaining first correction information of the first display panel by a correction instrument, performing first correction on the brightness of the second display panel according to the first correction information to obtain first correction brightness of the second display panel, then obtaining second correction information of the second display panel by a user, performing second correction on the brightness of the second display panel according to the second correction information to obtain second correction brightness of the second display panel, and finally performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel so as to match the brightness of the second display panel with the brightness of the first display panel, the problem that the brightness of the second display panel in the spliced screen is inconsistent with the brightness of the first display panel can be solved according to the aspects of the present application, the brightness of the second display panel after correction is prevented from being different from the brightness of the second display panel actually observed, and the consistency of the display effect of the second display panel and the display effect of the first display panel is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 shows a schematic diagram of a display of an embodiment of the present application.
Fig. 2 shows a flowchart of a luminance matching method of a display according to an embodiment of the present application.
Fig. 3 shows a block diagram of a display of an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
The application mainly provides a brightness matching method of a display, the display comprises a first display panel and a second display panel, the first display panel is spliced with the second display panel, and the brightness matching method of the display comprises the following steps: acquiring first correction information of a correction instrument on the first display panel; correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness of the second display panel; acquiring second correction information of the second display panel by the user; correcting the brightness of the second display panel for the second time according to the second correction information to obtain second correction brightness of the second display panel; and performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel, so that the brightness of the second display panel is matched with the brightness of the first display panel.
The method can solve the problem that the brightness of the second display panel in the spliced screen is inconsistent with the brightness of the first display panel by acquiring first correction information of a correction instrument on the first display panel, performing first correction on the brightness of the second display panel according to the first correction information to obtain first correction brightness of the second display panel, then acquiring second correction information of a user on the second display panel, performing second correction on the brightness of the second display panel according to the second correction information to obtain second correction brightness of the second display panel, and finally performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel so as to enable the brightness of the second display panel to be matched with the brightness of the first display panel, the brightness of the second display panel after correction is prevented from being different from the brightness of the second display panel actually observed, and the consistency of the display effect of the second display panel and the display effect of the first display panel is improved.
Fig. 1 shows a schematic diagram of a display of an embodiment of the present application.
As shown in fig. 1, the display in the embodiment of the present application may include at least one first display panel and at least one second display panel, where the at least one first display panel is spliced with the at least one second display panel. Illustratively, the first display panel may be an LCD screen and the second display panel may be an LED screen.
In fig. 1, taking the example that the display includes 4 LCD screens and 4 LED screens, at least one LED screen may be disposed around the LCD screen, and any one LED screen may be disposed at a gap between two corresponding LCD screens. For example, in fig. 1, the LED screen 12 may be disposed around the LCD screen 11. It is understood that fig. 1 is an exemplary one, the LCD screen and the LED screen in fig. 1 may extend outwards along the periphery, and the present application is not limited to the manner of splicing the LCD screen and the LED screen in the display.
Fig. 2 shows a flowchart of a luminance matching method of a display according to an embodiment of the present application.
As shown in fig. 2, in an embodiment of the present application, the method for matching brightness of a display may include:
step S10: acquiring first correction information of a correction instrument on the first display panel;
wherein the calibration instrument comprises a colorimeter or a spectrometer. Either a colorimeter or a spectrometer may be used to measure the brightness of the display panel in the embodiments of the present application. And the brightness of the display panel is measured by using a colorimeter or a spectrometer, so that the method is simple and convenient. It is understood that in practical applications, other devices or apparatuses may be used to measure the brightness of the screen, and the application is not limited to how to measure the brightness of the display panel.
Further, acquiring first correction information of a correction instrument on the first display panel, including:
step S101: displaying the same display screen as the first display panel on the second display panel;
step S102: acquiring first correction information of a correction instrument on the first display panel, wherein the first correction information comprises first display brightness of the first display panel and second display brightness of the second display panel.
Since the brightness of the second display panel needs to be adapted to the brightness of the first display panel, the same display screen can be input to the second display panel and the first display panel respectively to compare the brightness difference of the second display panel and the first display panel when the same display screen is displayed. The display picture can be a full white picture, a full black picture or other pictures with any colors. Through inputting the same display picture in the second display panel and the first display panel, the brightness difference between the second display panel and the first display panel can be conveniently compared, and subsequent correction can be conveniently carried out.
Taking the first display panel as an LCD screen as an example, any one of the first display panels may include a plurality of pixel units arranged in rows and columns. Each pixel cell may include three different types of sub-pixel cells, such as a red sub-pixel cell, a green sub-pixel cell, and a blue sub-pixel cell. Each sub-pixel element may be used to display the other of red (i.e., R), green (i.e., G), or blue (i.e., B). It is understood that the sub-pixel unit may be of other types, such as a white sub-pixel unit, and the present application is not limited to the type of the sub-pixel unit.
Continuing with the example that the first display panel is an LCD screen, in any one of the first display panels, each pixel unit may be electrically connected to one data line, and each row of pixel units may be connected to one scan line. A thin film transistor may be disposed in each pixel unit. When the scanning line corresponding to one row of pixel units is turned on, all the thin film transistors in the row of pixel units can be in a conducting state, so that the display data on the corresponding data line can be written into the corresponding pixel unit, and the display panel is driven to display.
Further, the display data corresponding to each pixel unit may include gray scale data. For example, each sub-pixel unit may be correspondingly provided with a gray scale. The gray levels may represent different brightness levels for each color from darkest to brightest. Taking 8-bit gray scale as an example, the gray scale of the LCD panel ranges from 0 to 255 for 256 levels, and the maximum gray scale is 255. Of course, the number and representation of gray levels may be different for different types of display screens. For example, the gray scale may be represented by 10-bit binary, and the gray scale may range from 0 to 1023. It is understood that the present application is not limited to the number and representation of gray levels.
Further, the gray scale range of the second display panel is the same as that of the first display panel. For example, the gray scale range of the second display panel may also be 0 to 255. Of course, in practical applications, the gray scale range of the second display panel may be different from the gray scale range of the first display panel according to the needs of specific situations.
Step S20, correcting the brightness of the second display panel for the first time according to the first correction information to obtain a first corrected brightness of the second display panel;
for example, the first correction in the embodiment of the present application may adopt a point-by-point correction. Specifically, in the first correction process, the brightness of each pixel unit on the second display panel may be collected by performing point-by-point correction, the brightness (i.e., the first display brightness) on the corresponding first display panel is compared, and the brightness (i.e., the second display brightness) of the second display panel is corrected according to the corresponding brightness on the first display panel, so as to obtain the first corrected brightness of the second display panel after the first correction. It is to be understood that other correction methods may be adopted for the first correction, and the method for the first correction is not limited in the present application.
In practical applications, the first corrected luminance after the first correction may have an error with the actually observed luminance of the second display panel, and therefore, further correction is required to eliminate the error between the luminance of the second display panel generated by the first correction and the actually observed luminance of the second display panel.
Step S30: acquiring second correction information of the second display panel by the user;
wherein acquiring second correction information of the second display panel by the user comprises:
step S301: acquiring a gray scale range of the second display panel;
step S302: selecting at least one tie point gray scale within the gray scale range of the second display panel;
step S303: and acquiring second correction information of the second display panel by the user according to the at least one binding point gray scale, wherein the second correction information comprises the brightness of the second display panel corresponding to the at least one binding point gray scale.
Further, a gray scale range of the second display panel is obtained. The gray scale range of the second display panel can be the whole gray scale range of the second display panel, such as 0-255 gray scales; or a local gray scale range of the second display panel, for example, 0 to 128 gray scales are selected from 0 to 255 gray scales as the gray scale range of the second display panel. It is understood that the gray scale range of the second display panel is not limited in the present application.
Further, the gray scale range of the second display panel is the same as that of the first display panel, and at least one binding point gray scale is selected in the gray scale range of the second display panel. For example, 7 binding gray levels may be selected from the gray levels of 0 to 255. Illustratively, binding gray levels may be set at 16, 32, 48, 64, 80, 96, 112. And the second display panel can be correspondingly driven to display the brightness corresponding to each binding point gray scale under each binding point gray scale. It should be noted that, since the first display panel and the second display panel input the same display frame when comparing the brightness, the first display panel may also be provided with the same tie point gray scale as the second display panel corresponding to the tie point gray scale of the second display panel. Since the gray scale range of the second display panel is the same as that of the first display panel, the correction complexity can be reduced and the correction efficiency can be improved when the corresponding relation between the gray scale and the brightness is processed.
Further, second correction information of the second display panel by the user is acquired according to the at least one binding point gray scale, wherein the second correction information comprises the brightness of the second display panel corresponding to the at least one binding point gray scale. That is, the second correction information corresponds to the at least one binding gray scale. In addition, the second correction information may further include a brightness of the first display panel associated with the at least one binding gray scale.
At least one binding point gray scale is selected in the gray scale range of the second display panel, and second correction is performed according to the at least one binding point gray scale.
Further, acquiring second correction information of the second display panel by the user, may further include:
step S300: judging whether the first correction brightness of the second display panel is consistent with the brightness of the second display panel which is actually observed or not;
step S301: and acquiring second correction information of the second display panel by the user under the condition that the first correction brightness of the second display panel is inconsistent with the brightness of the second display panel actually observed.
Wherein the actually observed luminance of the second display panel may be a luminance of the second display panel actually observed with the naked eye.
Because the first corrected brightness of the second display panel can be ideal brightness after first correction, and the actually observed brightness of the second display panel and the first corrected brightness of the second display panel can have difference, the actually observed brightness of the second display panel is compared with the first corrected brightness of the second display panel, and the embodiment of the application can avoid the difference between the corrected brightness of the second display panel and the actually observed brightness of the second display panel, and improve the consistency of the display effect of the second display panel and the first display panel.
Further, determining whether the first corrected luminance of the second display panel is consistent with the actually observed luminance of the second display panel includes:
step S3001: displaying the same display screen as the first display panel on the second display panel based on the first corrected luminance;
step S3002: and judging whether the first correction brightness of the second display panel is consistent with the actually observed brightness of the second display panel or not according to the brightness of the display picture of the second display panel and the brightness of the display picture of the first display panel.
Specifically, the same display screen as that of the first display panel may be displayed on the second display panel based on the first corrected luminance after the first correction, and then whether the luminance of the second display panel after the first correction is consistent with the actually observed luminance of the second display panel may be observed with the naked eye. If the brightness of the second display panel after the first correction is consistent with the brightness of the second display panel which is actually observed, the brightness of the second display panel after the first correction is consistent with the actual situation, and the next correction can not be carried out; if the brightness of the second display panel after the first correction is not consistent with the actually observed brightness of the second display panel, it indicates that the brightness of the second display panel after the first correction is not consistent with the actual situation, and the brightness of the second display panel needs to be further corrected.
Whether the first correction brightness of the second display panel is consistent with the brightness of the second display panel actually observed is judged according to the brightness of the display picture of the second display panel and the brightness of the display picture of the first display panel, so that the consistency of the first correction and the second correction can be kept, and the method and the device are simple, convenient and easy to realize.
Step S40: correcting the brightness of the second display panel for the second time according to the second correction information to obtain second correction brightness of the second display panel;
wherein, for convenience of use, the brightness of the second display panel can be corrected for the second time by naked eyes according to the second correction information, so as to obtain a second corrected brightness of the second display panel. That is, the luminance of the second display panel may be corrected a second time by a human according to the second correction information. Of course, in actual use, the observation characteristics of human eyes to the brightness may be simulated in advance, and the artificial device may be used to perform the second correction on the brightness of the second display panel instead of the human. It is to be understood that the present application is not limited to what kind of device is used to correct the brightness of the second display panel for the second time.
Illustratively, the brightness of the second display panel corresponding to the at least one binding point gray scale is manually corrected, so as to obtain the brightness of the second display panel which is subjected to the second correction and corresponds to the at least one binding point gray scale. That is, the second correction luminance of the second display panel may correspond to the at least one binding gray scale and be adjusted through the second correction.
Step S50: and performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel, so that the brightness of the second display panel is matched with the brightness of the first display panel.
Wherein performing a third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain a third correction brightness of the second display panel, includes:
step S501: generating a first gain coefficient corresponding to the at least one binding point gray scale according to the first correction brightness and the second correction brightness;
step S502: performing linear interpolation based on the first gain coefficient corresponding to the at least one binding point gray scale to obtain a second gain coefficient corresponding to each level of brightness of the second display panel;
step S503: and performing third correction on the brightness of the second display panel according to the second gain coefficient to obtain third corrected brightness of the second display panel.
Further, a first gain coefficient corresponding to the at least one binding point gray scale is generated according to the first corrected luminance and the second corrected luminance. For example, in the case where the tie gray levels are 7, by making a ratio of the second corrected luminance after the second correction to the first corrected luminance after the first correction, 7 first gain coefficients corresponding to the 7 tie gray levels can be obtained.
Further, linear interpolation is performed based on the gain coefficient corresponding to the at least one binding point gray scale, so that a second gain coefficient corresponding to each level of brightness of the second display panel is obtained. The brightness of the second display panel can be represented by 16 bits, that is, the brightness of the second display panel can be divided into 0 to 65535 brightness levels. The gray scale of the second display panel may correspond to the brightness of the second display panel. For example, in the embodiment of the present application, 7 binding point gray scales are selected, and after the luminance of the second display panel is corrected under the 7 binding point gray scales, the luminances corresponding to 0 to 65535 luminances can be obtained by one-dimensional linear interpolation based on the first gain coefficient corresponding to the at least one binding point gray scale, that is, the luminance corresponding to the 8-bit gray scale is expanded to a luminance level of 16 bits by the linear interpolation, so as to obtain the second gain coefficient corresponding to 65536 levels of luminance.
Further, the third correction is performed on the brightness of the second display panel according to the second gain coefficient, so that a third corrected brightness of the second display panel is obtained. For example, 65536 second gain coefficients are provided, that is, a corresponding second gain coefficient can be obtained for each brightness level of the second display panel, and this second gain coefficient can be operated (for example, multiplied) with the first corrected brightness of the second display panel, thereby obtaining a third corrected brightness of the second display panel.
According to the correction method and the correction device, the first gain coefficient corresponding to the at least one binding point gray scale is generated according to the first correction brightness and the second correction brightness, linear interpolation is carried out based on the first gain coefficient, and then the third correction is carried out on the brightness of the second display panel.
Further, the display screen of the display includes a plurality of colors, and the first correction luminance, the second correction luminance, and the third luminance respectively correspond to the respective colors of the display screen of the display. For example, the plurality of colors may be red (i.e., R), green (i.e., G), and blue (i.e., B). Therefore, in the embodiment of the present application, the corresponding gray scales corresponding to each color may be traversed according to the above method, and the brightness of the second display panel is adjusted to obtain the brightness table of the second display panel corresponding to each color. And finally, the brightness table is led into a control system (such as a time sequence controller) in the display panel, so that the brightness of the second display panel is consistent with that of the first display panel, and the consistency of the display effect of the second display panel and that of the first display panel is ensured.
By traversing each color of the display panel, the embodiment of the application can ensure the integrity of the correction process, expand the application range of the correction process and further improve the accuracy of the brightness correction of the second display panel.
Fig. 3 shows a block diagram of a display of an embodiment of the application.
As shown in fig. 3, the present application also provides a display, including: the first acquisition module 31 is electrically connected with the first correction module, and is used for acquiring first correction information of the first display panel by a correction instrument; the first correction module 32 is electrically connected with the first acquisition module and the second acquisition module, and is used for performing first correction on the brightness of the second display panel according to the first correction information to obtain first corrected brightness of the second display panel; a second obtaining module 33, electrically connected to the first correcting module and the second correcting module, for obtaining second correcting information of the user on the second display panel; the second correction module 34 is electrically connected to the second obtaining module and the third correction module, and the second correction module is configured to perform a second correction on the brightness of the second display panel according to the second correction information to obtain a second corrected brightness of the second display panel; and a third correction module 35 electrically connected to the second correction module, wherein the third correction module is configured to perform a third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain a third correction brightness of the second display panel, so that the brightness of the second display panel matches with the brightness of the first display panel.
It should be noted that the display according to the embodiment of the present application may be used to perform the brightness matching method of the display. For specific details of the method for performing brightness matching of the display, reference may be made to the application of the foregoing embodiments, and details are not repeated here.
In summary, the embodiment of the present application obtains the first correction information of the first display panel by the correction instrument, and performs the first correction on the brightness of the second display panel according to the first correction information to obtain the first correction brightness of the second display panel, then obtains the second correction information of the user on the second display panel, and performs the second correction on the brightness of the second display panel according to the second correction information to obtain the second correction brightness of the second display panel, and finally performs the third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain the third correction brightness of the second display panel, so as to match the brightness of the second display panel with the brightness of the first display panel, thereby solving the problem that the brightness of the second display panel in the tiled screen is inconsistent with the brightness of the first display panel, the brightness of the second display panel after correction is prevented from being different from the brightness of the second display panel actually observed, and the consistency of the display effect of the second display panel and the display effect of the first display panel is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing describes in detail a brightness matching method for a display and a display provided in an embodiment of the present application, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A brightness matching method of a display, wherein the display comprises a first display panel and a second display panel, the first display panel is spliced with the second display panel, and the brightness matching method of the display comprises the following steps:
acquiring first correction information of a correction instrument on the first display panel;
correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness of the second display panel;
acquiring second correction information of the second display panel by the user;
correcting the brightness of the second display panel for the second time according to the second correction information to obtain second correction brightness of the second display panel;
and performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel, so that the brightness of the second display panel is matched with the brightness of the first display panel.
2. The method for luminance matching of a display according to claim 1, wherein acquiring second correction information of the second display panel by the user comprises:
judging whether the first correction brightness of the second display panel is consistent with the brightness of the second display panel which is actually observed or not;
and acquiring second correction information of the second display panel by the user under the condition that the first correction brightness of the second display panel is inconsistent with the brightness of the second display panel actually observed.
3. The method of claim 2, wherein determining whether the first corrected luminance of the second display panel is consistent with the actually observed luminance of the second display panel comprises:
displaying the same display screen as the first display panel on the second display panel based on the first corrected luminance;
and judging whether the first correction brightness of the second display panel is consistent with the actually observed brightness of the second display panel or not according to the brightness of the display picture of the second display panel and the brightness of the display picture of the first display panel.
4. The method for matching brightness of a display according to claim 1, wherein obtaining first calibration information of a calibration instrument for the first display panel comprises:
displaying the same display screen as the first display panel on the second display panel;
acquiring first correction information of a correction instrument on the first display panel, wherein the first correction information comprises first display brightness of the first display panel and second display brightness of the second display panel.
5. The method for luminance matching of a display according to claim 4, wherein acquiring second correction information of the second display panel by the user comprises:
acquiring a gray scale range of the second display panel;
selecting at least one tie point gray scale within the gray scale range of the second display panel;
and acquiring second correction information of the second display panel by the user according to the at least one binding point gray scale, wherein the second correction information comprises the brightness of the second display panel corresponding to the at least one binding point gray scale.
6. The luminance matching method for a display according to claim 5, wherein performing a third correction on the luminance of the second display panel according to the first corrected luminance and the second corrected luminance to obtain a third corrected luminance of the second display panel comprises:
generating a first gain coefficient corresponding to the at least one binding point gray scale according to the first correction brightness and the second correction brightness;
performing linear interpolation based on the first gain coefficient corresponding to the at least one binding point gray scale to obtain a second gain coefficient corresponding to each level of brightness of the second display panel;
and performing third correction on the brightness of the second display panel according to the second gain coefficient to obtain third corrected brightness of the second display panel.
7. The luminance matching method for a display according to claim 1, wherein a display screen of the display includes a plurality of colors, and the first corrected luminance, the second corrected luminance, and the third luminance respectively correspond to the respective colors of the display screen of the display.
8. The method of claim 1, wherein the calibration instrument comprises a colorimeter or a spectrometer.
9. The method of claim 1, wherein the gray scale range of the second display panel is the same as the gray scale range of the first display panel.
10. A display, characterized in that the display comprises:
the first acquisition module is electrically connected with the first correction module and is used for acquiring first correction information of the first display panel by a correction instrument;
the first correction module is electrically connected with the first acquisition module and the second acquisition module and is used for correcting the brightness of the second display panel for the first time according to the first correction information to obtain first corrected brightness of the second display panel;
the second acquisition module is electrically connected with the first correction module and the second correction module and is used for acquiring second correction information of the user on the second display panel;
the second correction module is electrically connected with the second acquisition module and the third correction module, and is used for performing second correction on the brightness of the second display panel according to the second correction information to obtain second correction brightness of the second display panel;
and the third correction module is electrically connected with the second correction module and is used for performing third correction on the brightness of the second display panel according to the first correction brightness and the second correction brightness to obtain third correction brightness of the second display panel so as to enable the brightness of the second display panel to be matched with the brightness of the first display panel.
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